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Comparing jsr166/src/test/tck/JSR166TestCase.java (file contents):
Revision 1.45 by jsr166, Thu Nov 26 15:42:15 2009 UTC vs.
Revision 1.151 by jsr166, Sat Oct 3 19:19:01 2015 UTC

#	Line 1 | Line 1
1		/*
2		* Written by Doug Lea with assistance from members of JCP JSR-166
3		* Expert Group and released to the public domain, as explained at
4	<	* http://creativecommons.org/licenses/publicdomain
4	>	* http://creativecommons.org/publicdomain/zero/1.0/
5		* Other contributors include Andrew Wright, Jeffrey Hayes,
6		* Pat Fisher, Mike Judd.
7		*/
8
9	–	import junit.framework.*;
10	–	import java.util.*;
11	–	import java.util.concurrent.*;
9		import static java.util.concurrent.TimeUnit.MILLISECONDS;
10	<	import java.io.*;
11	<	import java.security.*;
10	>	import static java.util.concurrent.TimeUnit.NANOSECONDS;
11	>
12	>	import java.io.ByteArrayInputStream;
13	>	import java.io.ByteArrayOutputStream;
14	>	import java.io.ObjectInputStream;
15	>	import java.io.ObjectOutputStream;
16	>	import java.lang.management.ManagementFactory;
17	>	import java.lang.management.ThreadInfo;
18	>	import java.lang.management.ThreadMXBean;
19	>	import java.lang.reflect.Constructor;
20	>	import java.lang.reflect.Method;
21	>	import java.lang.reflect.Modifier;
22	>	import java.security.CodeSource;
23	>	import java.security.Permission;
24	>	import java.security.PermissionCollection;
25	>	import java.security.Permissions;
26	>	import java.security.Policy;
27	>	import java.security.ProtectionDomain;
28	>	import java.security.SecurityPermission;
29	>	import java.util.ArrayList;
30	>	import java.util.Arrays;
31	>	import java.util.Date;
32	>	import java.util.Enumeration;
33	>	import java.util.Iterator;
34	>	import java.util.List;
35	>	import java.util.NoSuchElementException;
36	>	import java.util.PropertyPermission;
37	>	import java.util.concurrent.BlockingQueue;
38	>	import java.util.concurrent.Callable;
39	>	import java.util.concurrent.CountDownLatch;
40	>	import java.util.concurrent.CyclicBarrier;
41	>	import java.util.concurrent.ExecutionException;
42	>	import java.util.concurrent.Executors;
43	>	import java.util.concurrent.ExecutorService;
44	>	import java.util.concurrent.ForkJoinPool;
45	>	import java.util.concurrent.Future;
46	>	import java.util.concurrent.RecursiveAction;
47	>	import java.util.concurrent.RecursiveTask;
48	>	import java.util.concurrent.RejectedExecutionHandler;
49	>	import java.util.concurrent.Semaphore;
50	>	import java.util.concurrent.ThreadFactory;
51	>	import java.util.concurrent.ThreadPoolExecutor;
52	>	import java.util.concurrent.TimeoutException;
53	>	import java.util.concurrent.atomic.AtomicReference;
54	>	import java.util.regex.Pattern;
55	>
56	>	import junit.framework.AssertionFailedError;
57	>	import junit.framework.Test;
58	>	import junit.framework.TestCase;
59	>	import junit.framework.TestResult;
60	>	import junit.framework.TestSuite;
61
62		/**
63		* Base class for JSR166 Junit TCK tests.  Defines some constants,
#	Line 23 | Line 69 | import java.security.*;
69		*
70		* <ol>
71		*
72	<	* <li> All assertions in code running in generated threads must use
72	>	* <li>All assertions in code running in generated threads must use
73		* the forms {@link #threadFail}, {@link #threadAssertTrue}, {@link
74		* #threadAssertEquals}, or {@link #threadAssertNull}, (not
75	<	* <tt>fail</tt>, <tt>assertTrue</tt>, etc.) It is OK (but not
75	>	* {@code fail}, {@code assertTrue}, etc.) It is OK (but not
76		* particularly recommended) for other code to use these forms too.
77		* Only the most typically used JUnit assertion methods are defined
78	<	* this way, but enough to live with.</li>
78	>	* this way, but enough to live with.
79		*
80	<	* <li> If you override {@link #setUp} or {@link #tearDown}, make sure
81	<	* to invoke <tt>super.setUp</tt> and <tt>super.tearDown</tt> within
80	>	* <li>If you override {@link #setUp} or {@link #tearDown}, make sure
81	>	* to invoke {@code super.setUp} and {@code super.tearDown} within
82		* them. These methods are used to clear and check for thread
83	<	* assertion failures.</li>
83	>	* assertion failures.
84		*
85	<	* <li>All delays and timeouts must use one of the constants <tt>
86	<	* SHORT_DELAY_MS</tt>, <tt> SMALL_DELAY_MS</tt>, <tt> MEDIUM_DELAY_MS</tt>,
87	<	* <tt> LONG_DELAY_MS</tt>. The idea here is that a SHORT is always
85	>	* <li>All delays and timeouts must use one of the constants {@code
86	>	* SHORT_DELAY_MS}, {@code SMALL_DELAY_MS}, {@code MEDIUM_DELAY_MS},
87	>	* {@code LONG_DELAY_MS}. The idea here is that a SHORT is always
88		* discriminable from zero time, and always allows enough time for the
89		* small amounts of computation (creating a thread, calling a few
90		* methods, etc) needed to reach a timeout point. Similarly, a SMALL
91		* is always discriminable as larger than SHORT and smaller than
92		* MEDIUM.  And so on. These constants are set to conservative values,
93		* but even so, if there is ever any doubt, they can all be increased
94	<	* in one spot to rerun tests on slower platforms.</li>
94	>	* in one spot to rerun tests on slower platforms.
95		*
96	<	* <li> All threads generated must be joined inside each test case
97	<	* method (or <tt>fail</tt> to do so) before returning from the
98	<	* method. The <tt> joinPool</tt> method can be used to do this when
99	<	* using Executors.</li>
96	>	* <li>All threads generated must be joined inside each test case
97	>	* method (or {@code fail} to do so) before returning from the
98	>	* method. The {@code joinPool} method can be used to do this when
99	>	* using Executors.
100		*
101		* </ol>
102		*
103	<	* <p> <b>Other notes</b>
103	>	* <p><b>Other notes</b>
104		* <ul>
105		*
106	<	* <li> Usually, there is one testcase method per JSR166 method
106	>	* <li>Usually, there is one testcase method per JSR166 method
107		* covering "normal" operation, and then as many exception-testing
108		* methods as there are exceptions the method can throw. Sometimes
109		* there are multiple tests per JSR166 method when the different
110		* "normal" behaviors differ significantly. And sometimes testcases
111		* cover multiple methods when they cannot be tested in
112	<	* isolation.</li>
112	>	* isolation.
113		*
114	<	* <li> The documentation style for testcases is to provide as javadoc
114	>	* <li>The documentation style for testcases is to provide as javadoc
115		* a simple sentence or two describing the property that the testcase
116		* method purports to test. The javadocs do not say anything about how
117	<	* the property is tested. To find out, read the code.</li>
117	>	* the property is tested. To find out, read the code.
118		*
119	<	* <li> These tests are "conformance tests", and do not attempt to
119	>	* <li>These tests are "conformance tests", and do not attempt to
120		* test throughput, latency, scalability or other performance factors
121		* (see the separate "jtreg" tests for a set intended to check these
122		* for the most central aspects of functionality.) So, most tests use
123		* the smallest sensible numbers of threads, collection sizes, etc
124	<	* needed to check basic conformance.</li>
124	>	* needed to check basic conformance.
125		*
126		* <li>The test classes currently do not declare inclusion in
127		* any particular package to simplify things for people integrating
128	<	* them in TCK test suites.</li>
128	>	* them in TCK test suites.
129		*
130	<	* <li> As a convenience, the <tt>main</tt> of this class (JSR166TestCase)
131	<	* runs all JSR166 unit tests.</li>
130	>	* <li>As a convenience, the {@code main} of this class (JSR166TestCase)
131	>	* runs all JSR166 unit tests.
132		*
133		* </ul>
134		*/
135		public class JSR166TestCase extends TestCase {
136	+	private static final boolean useSecurityManager =
137	+	Boolean.getBoolean("jsr166.useSecurityManager");
138	+
139	+	protected static final boolean expensiveTests =
140	+	Boolean.getBoolean("jsr166.expensiveTests");
141	+
142	+	/**
143	+	* If true, also run tests that are not part of the official tck
144	+	* because they test unspecified implementation details.
145	+	*/
146	+	protected static final boolean testImplementationDetails =
147	+	Boolean.getBoolean("jsr166.testImplementationDetails");
148	+
149	+	/**
150	+	* If true, report on stdout all "slow" tests, that is, ones that
151	+	* take more than profileThreshold milliseconds to execute.
152	+	*/
153	+	private static final boolean profileTests =
154	+	Boolean.getBoolean("jsr166.profileTests");
155	+
156	+	/**
157	+	* The number of milliseconds that tests are permitted for
158	+	* execution without being reported, when profileTests is set.
159	+	*/
160	+	private static final long profileThreshold =
161	+	Long.getLong("jsr166.profileThreshold", 100);
162	+
163	+	/**
164	+	* The number of repetitions per test (for tickling rare bugs).
165	+	*/
166	+	private static final int runsPerTest =
167	+	Integer.getInteger("jsr166.runsPerTest", 1);
168	+
169	+	/**
170	+	* The number of repetitions of the test suite (for finding leaks?).
171	+	*/
172	+	private static final int suiteRuns =
173	+	Integer.getInteger("jsr166.suiteRuns", 1);
174	+
175	+	public JSR166TestCase() { super(); }
176	+	public JSR166TestCase(String name) { super(name); }
177	+
178		/**
179	<	* Runs all JSR166 unit tests using junit.textui.TestRunner
179	>	* A filter for tests to run, matching strings of the form
180	>	* methodName(className), e.g. "testInvokeAll5(ForkJoinPoolTest)"
181	>	* Usefully combined with jsr166.runsPerTest.
182	>	*/
183	>	private static final Pattern methodFilter = methodFilter();
184	>
185	>	private static Pattern methodFilter() {
186	>	String regex = System.getProperty("jsr166.methodFilter");
187	>	return (regex == null) ? null : Pattern.compile(regex);
188	>	}
189	>
190	>	public void runBare() throws Throwable {
191	>	if (methodFilter == null
192	>	|| methodFilter.matcher(toString()).find())
193	>	super.runBare();
194	>	}
195	>
196	>	protected void runTest() throws Throwable {
197	>	for (int i = 0; i < runsPerTest; i++) {
198	>	if (profileTests)
199	>	runTestProfiled();
200	>	else
201	>	super.runTest();
202	>	}
203	>	}
204	>
205	>	protected void runTestProfiled() throws Throwable {
206	>	for (int i = 0; i < 2; i++) {
207	>	long startTime = System.nanoTime();
208	>	super.runTest();
209	>	long elapsedMillis = millisElapsedSince(startTime);
210	>	if (elapsedMillis < profileThreshold)
211	>	break;
212	>	// Never report first run of any test; treat it as a
213	>	// warmup run, notably to trigger all needed classloading,
214	>	if (i > 0)
215	>	System.out.printf("%n%s: %d%n", toString(), elapsedMillis);
216	>	}
217	>	}
218	>
219	>	/**
220	>	* Runs all JSR166 unit tests using junit.textui.TestRunner.
221		*/
222		public static void main(String[] args) {
223	<	int iters = 1;
224	<	if (args.length > 0)
225	<	iters = Integer.parseInt(args[0]);
226	<	Test s = suite();
227	<	for (int i = 0; i < iters; ++i) {
228	<	junit.textui.TestRunner.run(s);
223	>	main(suite(), args);
224	>	}
225	>
226	>	/**
227	>	* Runs all unit tests in the given test suite.
228	>	* Actual behavior influenced by jsr166.* system properties.
229	>	*/
230	>	static void main(Test suite, String[] args) {
231	>	if (useSecurityManager) {
232	>	System.err.println("Setting a permissive security manager");
233	>	Policy.setPolicy(permissivePolicy());
234	>	System.setSecurityManager(new SecurityManager());
235	>	}
236	>	for (int i = 0; i < suiteRuns; i++) {
237	>	TestResult result = junit.textui.TestRunner.run(suite);
238	>	if (!result.wasSuccessful())
239	>	System.exit(1);
240		System.gc();
241		System.runFinalization();
242		}
243	<	System.exit(0);
243	>	}
244	>
245	>	public static TestSuite newTestSuite(Object... suiteOrClasses) {
246	>	TestSuite suite = new TestSuite();
247	>	for (Object suiteOrClass : suiteOrClasses) {
248	>	if (suiteOrClass instanceof TestSuite)
249	>	suite.addTest((TestSuite) suiteOrClass);
250	>	else if (suiteOrClass instanceof Class)
251	>	suite.addTest(new TestSuite((Class<?>) suiteOrClass));
252	>	else
253	>	throw new ClassCastException("not a test suite or class");
254	>	}
255	>	return suite;
256	>	}
257	>
258	>	public static void addNamedTestClasses(TestSuite suite,
259	>	String... testClassNames) {
260	>	for (String testClassName : testClassNames) {
261	>	try {
262	>	Class<?> testClass = Class.forName(testClassName);
263	>	Method m = testClass.getDeclaredMethod("suite",
264	>	new Class<?>[0]);
265	>	suite.addTest(newTestSuite((Test)m.invoke(null)));
266	>	} catch (Exception e) {
267	>	throw new Error("Missing test class", e);
268	>	}
269	>	}
270	>	}
271	>
272	>	public static final double JAVA_CLASS_VERSION;
273	>	public static final String JAVA_SPECIFICATION_VERSION;
274	>	static {
275	>	try {
276	>	JAVA_CLASS_VERSION = java.security.AccessController.doPrivileged(
277	>	new java.security.PrivilegedAction<Double>() {
278	>	public Double run() {
279	>	return Double.valueOf(System.getProperty("java.class.version"));}});
280	>	JAVA_SPECIFICATION_VERSION = java.security.AccessController.doPrivileged(
281	>	new java.security.PrivilegedAction<String>() {
282	>	public String run() {
283	>	return System.getProperty("java.specification.version");}});
284	>	} catch (Throwable t) {
285	>	throw new Error(t);
286	>	}
287	>	}
288	>
289	>	public static boolean atLeastJava6() { return JAVA_CLASS_VERSION >= 50.0; }
290	>	public static boolean atLeastJava7() { return JAVA_CLASS_VERSION >= 51.0; }
291	>	public static boolean atLeastJava8() { return JAVA_CLASS_VERSION >= 52.0; }
292	>	public static boolean atLeastJava9() {
293	>	return JAVA_CLASS_VERSION >= 53.0
294	>	// As of 2015-09, java9 still uses 52.0 class file version
295	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?(9|[0-9][0-9])$");
296	>	}
297	>	public static boolean atLeastJava10() {
298	>	return JAVA_CLASS_VERSION >= 54.0
299	>	|| JAVA_SPECIFICATION_VERSION.matches("^(1\\.)?[0-9][0-9]$");
300		}
301
302		/**
303	<	* Collects all JSR166 unit tests as one suite
303	>	* Collects all JSR166 unit tests as one suite.
304		*/
305		public static Test suite() {
306	<	TestSuite suite = new TestSuite("JSR166 Unit Tests");
307	<
308	<	suite.addTest(new TestSuite(ForkJoinPoolTest.class));
309	<	suite.addTest(new TestSuite(ForkJoinTaskTest.class));
310	<	suite.addTest(new TestSuite(RecursiveActionTest.class));
311	<	suite.addTest(new TestSuite(RecursiveTaskTest.class));
312	<	suite.addTest(new TestSuite(LinkedTransferQueueTest.class));
313	<	suite.addTest(new TestSuite(PhaserTest.class));
314	<	suite.addTest(new TestSuite(ThreadLocalRandomTest.class));
315	<	suite.addTest(new TestSuite(AbstractExecutorServiceTest.class));
316	<	suite.addTest(new TestSuite(AbstractQueueTest.class));
317	<	suite.addTest(new TestSuite(AbstractQueuedSynchronizerTest.class));
318	<	suite.addTest(new TestSuite(AbstractQueuedLongSynchronizerTest.class));
319	<	suite.addTest(new TestSuite(ArrayBlockingQueueTest.class));
320	<	suite.addTest(new TestSuite(ArrayDequeTest.class));
321	<	suite.addTest(new TestSuite(AtomicBooleanTest.class));
322	<	suite.addTest(new TestSuite(AtomicIntegerArrayTest.class));
323	<	suite.addTest(new TestSuite(AtomicIntegerFieldUpdaterTest.class));
324	<	suite.addTest(new TestSuite(AtomicIntegerTest.class));
325	<	suite.addTest(new TestSuite(AtomicLongArrayTest.class));
326	<	suite.addTest(new TestSuite(AtomicLongFieldUpdaterTest.class));
327	<	suite.addTest(new TestSuite(AtomicLongTest.class));
328	<	suite.addTest(new TestSuite(AtomicMarkableReferenceTest.class));
329	<	suite.addTest(new TestSuite(AtomicReferenceArrayTest.class));
330	<	suite.addTest(new TestSuite(AtomicReferenceFieldUpdaterTest.class));
331	<	suite.addTest(new TestSuite(AtomicReferenceTest.class));
332	<	suite.addTest(new TestSuite(AtomicStampedReferenceTest.class));
333	<	suite.addTest(new TestSuite(ConcurrentHashMapTest.class));
334	<	suite.addTest(new TestSuite(ConcurrentLinkedQueueTest.class));
335	<	suite.addTest(new TestSuite(ConcurrentSkipListMapTest.class));
336	<	suite.addTest(new TestSuite(ConcurrentSkipListSubMapTest.class));
337	<	suite.addTest(new TestSuite(ConcurrentSkipListSetTest.class));
338	<	suite.addTest(new TestSuite(ConcurrentSkipListSubSetTest.class));
339	<	suite.addTest(new TestSuite(CopyOnWriteArrayListTest.class));
340	<	suite.addTest(new TestSuite(CopyOnWriteArraySetTest.class));
341	<	suite.addTest(new TestSuite(CountDownLatchTest.class));
342	<	suite.addTest(new TestSuite(CyclicBarrierTest.class));
343	<	suite.addTest(new TestSuite(DelayQueueTest.class));
344	<	suite.addTest(new TestSuite(EntryTest.class));
345	<	suite.addTest(new TestSuite(ExchangerTest.class));
346	<	suite.addTest(new TestSuite(ExecutorsTest.class));
347	<	suite.addTest(new TestSuite(ExecutorCompletionServiceTest.class));
348	<	suite.addTest(new TestSuite(FutureTaskTest.class));
349	<	suite.addTest(new TestSuite(LinkedBlockingDequeTest.class));
350	<	suite.addTest(new TestSuite(LinkedBlockingQueueTest.class));
351	<	suite.addTest(new TestSuite(LinkedListTest.class));
352	<	suite.addTest(new TestSuite(LockSupportTest.class));
353	<	suite.addTest(new TestSuite(PriorityBlockingQueueTest.class));
354	<	suite.addTest(new TestSuite(PriorityQueueTest.class));
355	<	suite.addTest(new TestSuite(ReentrantLockTest.class));
356	<	suite.addTest(new TestSuite(ReentrantReadWriteLockTest.class));
357	<	suite.addTest(new TestSuite(ScheduledExecutorTest.class));
358	<	suite.addTest(new TestSuite(ScheduledExecutorSubclassTest.class));
359	<	suite.addTest(new TestSuite(SemaphoreTest.class));
360	<	suite.addTest(new TestSuite(SynchronousQueueTest.class));
361	<	suite.addTest(new TestSuite(SystemTest.class));
362	<	suite.addTest(new TestSuite(ThreadLocalTest.class));
363	<	suite.addTest(new TestSuite(ThreadPoolExecutorTest.class));
364	<	suite.addTest(new TestSuite(ThreadPoolExecutorSubclassTest.class));
365	<	suite.addTest(new TestSuite(ThreadTest.class));
366	<	suite.addTest(new TestSuite(TimeUnitTest.class));
367	<	suite.addTest(new TestSuite(TreeMapTest.class));
368	<	suite.addTest(new TestSuite(TreeSetTest.class));
369	<	suite.addTest(new TestSuite(TreeSubMapTest.class));
370	<	suite.addTest(new TestSuite(TreeSubSetTest.class));
306	>	// Java7+ test classes
307	>	TestSuite suite = newTestSuite(
308	>	ForkJoinPoolTest.suite(),
309	>	ForkJoinTaskTest.suite(),
310	>	RecursiveActionTest.suite(),
311	>	RecursiveTaskTest.suite(),
312	>	LinkedTransferQueueTest.suite(),
313	>	PhaserTest.suite(),
314	>	ThreadLocalRandomTest.suite(),
315	>	AbstractExecutorServiceTest.suite(),
316	>	AbstractQueueTest.suite(),
317	>	AbstractQueuedSynchronizerTest.suite(),
318	>	AbstractQueuedLongSynchronizerTest.suite(),
319	>	ArrayBlockingQueueTest.suite(),
320	>	ArrayDequeTest.suite(),
321	>	AtomicBooleanTest.suite(),
322	>	AtomicIntegerArrayTest.suite(),
323	>	AtomicIntegerFieldUpdaterTest.suite(),
324	>	AtomicIntegerTest.suite(),
325	>	AtomicLongArrayTest.suite(),
326	>	AtomicLongFieldUpdaterTest.suite(),
327	>	AtomicLongTest.suite(),
328	>	AtomicMarkableReferenceTest.suite(),
329	>	AtomicReferenceArrayTest.suite(),
330	>	AtomicReferenceFieldUpdaterTest.suite(),
331	>	AtomicReferenceTest.suite(),
332	>	AtomicStampedReferenceTest.suite(),
333	>	ConcurrentHashMapTest.suite(),
334	>	ConcurrentLinkedDequeTest.suite(),
335	>	ConcurrentLinkedQueueTest.suite(),
336	>	ConcurrentSkipListMapTest.suite(),
337	>	ConcurrentSkipListSubMapTest.suite(),
338	>	ConcurrentSkipListSetTest.suite(),
339	>	ConcurrentSkipListSubSetTest.suite(),
340	>	CopyOnWriteArrayListTest.suite(),
341	>	CopyOnWriteArraySetTest.suite(),
342	>	CountDownLatchTest.suite(),
343	>	CyclicBarrierTest.suite(),
344	>	DelayQueueTest.suite(),
345	>	EntryTest.suite(),
346	>	ExchangerTest.suite(),
347	>	ExecutorsTest.suite(),
348	>	ExecutorCompletionServiceTest.suite(),
349	>	FutureTaskTest.suite(),
350	>	LinkedBlockingDequeTest.suite(),
351	>	LinkedBlockingQueueTest.suite(),
352	>	LinkedListTest.suite(),
353	>	LockSupportTest.suite(),
354	>	PriorityBlockingQueueTest.suite(),
355	>	PriorityQueueTest.suite(),
356	>	ReentrantLockTest.suite(),
357	>	ReentrantReadWriteLockTest.suite(),
358	>	ScheduledExecutorTest.suite(),
359	>	ScheduledExecutorSubclassTest.suite(),
360	>	SemaphoreTest.suite(),
361	>	SynchronousQueueTest.suite(),
362	>	SystemTest.suite(),
363	>	ThreadLocalTest.suite(),
364	>	ThreadPoolExecutorTest.suite(),
365	>	ThreadPoolExecutorSubclassTest.suite(),
366	>	ThreadTest.suite(),
367	>	TimeUnitTest.suite(),
368	>	TreeMapTest.suite(),
369	>	TreeSetTest.suite(),
370	>	TreeSubMapTest.suite(),
371	>	TreeSubSetTest.suite());
372	>
373	>	// Java8+ test classes
374	>	if (atLeastJava8()) {
375	>	String[] java8TestClassNames = {
376	>	"Atomic8Test",
377	>	"CompletableFutureTest",
378	>	"ConcurrentHashMap8Test",
379	>	"CountedCompleterTest",
380	>	"DoubleAccumulatorTest",
381	>	"DoubleAdderTest",
382	>	"ForkJoinPool8Test",
383	>	"ForkJoinTask8Test",
384	>	"LongAccumulatorTest",
385	>	"LongAdderTest",
386	>	"SplittableRandomTest",
387	>	"StampedLockTest",
388	>	"SubmissionPublisherTest",
389	>	"ThreadLocalRandom8Test",
390	>	};
391	>	addNamedTestClasses(suite, java8TestClassNames);
392	>	}
393	>
394	>	// Java9+ test classes
395	>	if (atLeastJava9()) {
396	>	String[] java9TestClassNames = {
397	>	// Currently empty, but expecting varhandle tests
398	>	};
399	>	addNamedTestClasses(suite, java9TestClassNames);
400	>	}
401
402		return suite;
403		}
404
405	+	/** Returns list of junit-style test method names in given class. */
406	+	public static ArrayList<String> testMethodNames(Class<?> testClass) {
407	+	Method[] methods = testClass.getDeclaredMethods();
408	+	ArrayList<String> names = new ArrayList<String>(methods.length);
409	+	for (Method method : methods) {
410	+	if (method.getName().startsWith("test")
411	+	&& Modifier.isPublic(method.getModifiers())
412	+	// method.getParameterCount() requires jdk8+
413	+	&& method.getParameterTypes().length == 0) {
414	+	names.add(method.getName());
415	+	}
416	+	}
417	+	return names;
418	+	}
419	+
420	+	/**
421	+	* Returns junit-style testSuite for the given test class, but
422	+	* parameterized by passing extra data to each test.
423	+	*/
424	+	public static <ExtraData> Test parameterizedTestSuite
425	+	(Class<? extends JSR166TestCase> testClass,
426	+	Class<ExtraData> dataClass,
427	+	ExtraData data) {
428	+	try {
429	+	TestSuite suite = new TestSuite();
430	+	Constructor c =
431	+	testClass.getDeclaredConstructor(dataClass, String.class);
432	+	for (String methodName : testMethodNames(testClass))
433	+	suite.addTest((Test) c.newInstance(data, methodName));
434	+	return suite;
435	+	} catch (Exception e) {
436	+	throw new Error(e);
437	+	}
438	+	}
439	+
440	+	/**
441	+	* Returns junit-style testSuite for the jdk8 extension of the
442	+	* given test class, but parameterized by passing extra data to
443	+	* each test.  Uses reflection to allow compilation in jdk7.
444	+	*/
445	+	public static <ExtraData> Test jdk8ParameterizedTestSuite
446	+	(Class<? extends JSR166TestCase> testClass,
447	+	Class<ExtraData> dataClass,
448	+	ExtraData data) {
449	+	if (atLeastJava8()) {
450	+	String name = testClass.getName();
451	+	String name8 = name.replaceAll("Test$", "8Test");
452	+	if (name.equals(name8)) throw new Error(name);
453	+	try {
454	+	return (Test)
455	+	Class.forName(name8)
456	+	.getMethod("testSuite", new Class[] { dataClass })
457	+	.invoke(null, data);
458	+	} catch (Exception e) {
459	+	throw new Error(e);
460	+	}
461	+	} else {
462	+	return new TestSuite();
463	+	}
464	+
465	+	}
466	+
467	+	// Delays for timing-dependent tests, in milliseconds.
468
469		public static long SHORT_DELAY_MS;
470		public static long SMALL_DELAY_MS;
471		public static long MEDIUM_DELAY_MS;
472		public static long LONG_DELAY_MS;
473
185	–
474		/**
475		* Returns the shortest timed delay. This could
476		* be reimplemented to use for example a Property.
#	Line 191 | Line 479 | public class JSR166TestCase extends Test
479		return 50;
480		}
481
194	–
482		/**
483		* Sets delays as multiples of SHORT_DELAY.
484		*/
485		protected void setDelays() {
486		SHORT_DELAY_MS = getShortDelay();
487	<	SMALL_DELAY_MS = SHORT_DELAY_MS * 5;
487	>	SMALL_DELAY_MS  = SHORT_DELAY_MS * 5;
488		MEDIUM_DELAY_MS = SHORT_DELAY_MS * 10;
489	<	LONG_DELAY_MS = SHORT_DELAY_MS * 50;
489	>	LONG_DELAY_MS   = SHORT_DELAY_MS * 200;
490		}
491
492		/**
493	<	* Flag set true if any threadAssert methods fail
493	>	* Returns a timeout in milliseconds to be used in tests that
494	>	* verify that operations block or time out.
495		*/
496	<	volatile boolean threadFailed;
496	>	long timeoutMillis() {
497	>	return SHORT_DELAY_MS / 4;
498	>	}
499
500		/**
501	<	* Initializes test to indicate that no thread assertions have failed
501	>	* Returns a new Date instance representing a time at least
502	>	* delayMillis milliseconds in the future.
503		*/
504	+	Date delayedDate(long delayMillis) {
505	+	// Add 1 because currentTimeMillis is known to round into the past.
506	+	return new Date(System.currentTimeMillis() + delayMillis + 1);
507	+	}
508	+
509	+	/**
510	+	* The first exception encountered if any threadAssertXXX method fails.
511	+	*/
512	+	private final AtomicReference<Throwable> threadFailure
513	+	= new AtomicReference<Throwable>(null);
514	+
515	+	/**
516	+	* Records an exception so that it can be rethrown later in the test
517	+	* harness thread, triggering a test case failure.  Only the first
518	+	* failure is recorded; subsequent calls to this method from within
519	+	* the same test have no effect.
520	+	*/
521	+	public void threadRecordFailure(Throwable t) {
522	+	threadFailure.compareAndSet(null, t);
523	+	}
524	+
525		public void setUp() {
526		setDelays();
527	<	threadFailed = false;
527	>	}
528	>
529	>	void tearDownFail(String format, Object... args) {
530	>	String msg = toString() + ": " + String.format(format, args);
531	>	System.err.println(msg);
532	>	printAllStackTraces();
533	>	throw new AssertionFailedError(msg);
534		}
535
536		/**
537	<	* Triggers test case failure if any thread assertions have failed
537	>	* Extra checks that get done for all test cases.
538	>	*
539	>	* Triggers test case failure if any thread assertions have failed,
540	>	* by rethrowing, in the test harness thread, any exception recorded
541	>	* earlier by threadRecordFailure.
542	>	*
543	>	* Triggers test case failure if interrupt status is set in the main thread.
544	>	*/
545	>	public void tearDown() throws Exception {
546	>	Throwable t = threadFailure.getAndSet(null);
547	>	if (t != null) {
548	>	if (t instanceof Error)
549	>	throw (Error) t;
550	>	else if (t instanceof RuntimeException)
551	>	throw (RuntimeException) t;
552	>	else if (t instanceof Exception)
553	>	throw (Exception) t;
554	>	else {
555	>	AssertionFailedError afe =
556	>	new AssertionFailedError(t.toString());
557	>	afe.initCause(t);
558	>	throw afe;
559	>	}
560	>	}
561	>
562	>	if (Thread.interrupted())
563	>	tearDownFail("interrupt status set in main thread");
564	>
565	>	checkForkJoinPoolThreadLeaks();
566	>	}
567	>
568	>	/**
569	>	* Finds missing try { ... } finally { joinPool(e); }
570		*/
571	<	public void tearDown() {
572	<	assertFalse(threadFailed);
571	>	void checkForkJoinPoolThreadLeaks() throws InterruptedException {
572	>	Thread[] survivors = new Thread[7];
573	>	int count = Thread.enumerate(survivors);
574	>	for (int i = 0; i < count; i++) {
575	>	Thread thread = survivors[i];
576	>	String name = thread.getName();
577	>	if (name.startsWith("ForkJoinPool-")) {
578	>	// give thread some time to terminate
579	>	thread.join(LONG_DELAY_MS);
580	>	if (thread.isAlive())
581	>	tearDownFail("Found leaked ForkJoinPool thread thread=%s",
582	>	thread);
583	>	}
584	>	}
585	>
586	>	if (!ForkJoinPool.commonPool()
587	>	.awaitQuiescence(LONG_DELAY_MS, MILLISECONDS))
588	>	tearDownFail("ForkJoin common pool thread stuck");
589		}
590
591		/**
592	<	* Fail, also setting status to indicate current testcase should fail
592	>	* Just like fail(reason), but additionally recording (using
593	>	* threadRecordFailure) any AssertionFailedError thrown, so that
594	>	* the current testcase will fail.
595		*/
596		public void threadFail(String reason) {
597	<	threadFailed = true;
598	<	fail(reason);
597	>	try {
598	>	fail(reason);
599	>	} catch (AssertionFailedError t) {
600	>	threadRecordFailure(t);
601	>	fail(reason);
602	>	}
603		}
604
605		/**
606	<	* If expression not true, set status to indicate current testcase
607	<	* should fail
606	>	* Just like assertTrue(b), but additionally recording (using
607	>	* threadRecordFailure) any AssertionFailedError thrown, so that
608	>	* the current testcase will fail.
609		*/
610		public void threadAssertTrue(boolean b) {
611	<	if (!b) {
239	<	threadFailed = true;
611	>	try {
612		assertTrue(b);
613	+	} catch (AssertionFailedError t) {
614	+	threadRecordFailure(t);
615	+	throw t;
616		}
617		}
618
619		/**
620	<	* If expression not false, set status to indicate current testcase
621	<	* should fail
620	>	* Just like assertFalse(b), but additionally recording (using
621	>	* threadRecordFailure) any AssertionFailedError thrown, so that
622	>	* the current testcase will fail.
623		*/
624		public void threadAssertFalse(boolean b) {
625	<	if (b) {
250	<	threadFailed = true;
625	>	try {
626		assertFalse(b);
627	+	} catch (AssertionFailedError t) {
628	+	threadRecordFailure(t);
629	+	throw t;
630		}
631		}
632
633		/**
634	<	* If argument not null, set status to indicate current testcase
635	<	* should fail
634	>	* Just like assertNull(x), but additionally recording (using
635	>	* threadRecordFailure) any AssertionFailedError thrown, so that
636	>	* the current testcase will fail.
637		*/
638		public void threadAssertNull(Object x) {
639	<	if (x != null) {
261	<	threadFailed = true;
639	>	try {
640		assertNull(x);
641	+	} catch (AssertionFailedError t) {
642	+	threadRecordFailure(t);
643	+	throw t;
644		}
645		}
646
647		/**
648	<	* If arguments not equal, set status to indicate current testcase
649	<	* should fail
648	>	* Just like assertEquals(x, y), but additionally recording (using
649	>	* threadRecordFailure) any AssertionFailedError thrown, so that
650	>	* the current testcase will fail.
651		*/
652		public void threadAssertEquals(long x, long y) {
653	<	if (x != y) {
272	<	threadFailed = true;
653	>	try {
654		assertEquals(x, y);
655	+	} catch (AssertionFailedError t) {
656	+	threadRecordFailure(t);
657	+	throw t;
658		}
659		}
660
661		/**
662	<	* If arguments not equal, set status to indicate current testcase
663	<	* should fail
662	>	* Just like assertEquals(x, y), but additionally recording (using
663	>	* threadRecordFailure) any AssertionFailedError thrown, so that
664	>	* the current testcase will fail.
665		*/
666		public void threadAssertEquals(Object x, Object y) {
667	<	if (x != y && (x == null || !x.equals(y))) {
283	<	threadFailed = true;
667	>	try {
668		assertEquals(x, y);
669	+	} catch (AssertionFailedError fail) {
670	+	threadRecordFailure(fail);
671	+	throw fail;
672	+	} catch (Throwable fail) {
673	+	threadUnexpectedException(fail);
674	+	}
675	+	}
676	+
677	+	/**
678	+	* Just like assertSame(x, y), but additionally recording (using
679	+	* threadRecordFailure) any AssertionFailedError thrown, so that
680	+	* the current testcase will fail.
681	+	*/
682	+	public void threadAssertSame(Object x, Object y) {
683	+	try {
684	+	assertSame(x, y);
685	+	} catch (AssertionFailedError fail) {
686	+	threadRecordFailure(fail);
687	+	throw fail;
688		}
689		}
690
691		/**
692	<	* threadFail with message "should throw exception"
692	>	* Calls threadFail with message "should throw exception".
693		*/
694		public void threadShouldThrow() {
695	<	threadFailed = true;
293	<	fail("should throw exception");
695	>	threadFail("should throw exception");
696		}
697
698		/**
699	<	* threadFail with message "should throw" + exceptionName
699	>	* Calls threadFail with message "should throw" + exceptionName.
700		*/
701		public void threadShouldThrow(String exceptionName) {
702	<	threadFailed = true;
703	<	fail("should throw " + exceptionName);
702	>	threadFail("should throw " + exceptionName);
703	>	}
704	>
705	>	/**
706	>	* Records the given exception using {@link #threadRecordFailure},
707	>	* then rethrows the exception, wrapping it in an
708	>	* AssertionFailedError if necessary.
709	>	*/
710	>	public void threadUnexpectedException(Throwable t) {
711	>	threadRecordFailure(t);
712	>	t.printStackTrace();
713	>	if (t instanceof RuntimeException)
714	>	throw (RuntimeException) t;
715	>	else if (t instanceof Error)
716	>	throw (Error) t;
717	>	else {
718	>	AssertionFailedError afe =
719	>	new AssertionFailedError("unexpected exception: " + t);
720	>	afe.initCause(t);
721	>	throw afe;
722	>	}
723		}
724
725		/**
726	<	* threadFail with message "Unexpected exception"
726	>	* Delays, via Thread.sleep, for the given millisecond delay, but
727	>	* if the sleep is shorter than specified, may re-sleep or yield
728	>	* until time elapses.
729		*/
730	<	public void threadUnexpectedException() {
731	<	threadFailed = true;
732	<	fail("Unexpected exception");
730	>	static void delay(long millis) throws InterruptedException {
731	>	long startTime = System.nanoTime();
732	>	long ns = millis * 1000 * 1000;
733	>	for (;;) {
734	>	if (millis > 0L)
735	>	Thread.sleep(millis);
736	>	else // too short to sleep
737	>	Thread.yield();
738	>	long d = ns - (System.nanoTime() - startTime);
739	>	if (d > 0L)
740	>	millis = d / (1000 * 1000);
741	>	else
742	>	break;
743	>	}
744		}
745
746		/**
747	<	* threadFail with message "Unexpected exception", with argument
747	>	* Allows use of try-with-resources with per-test thread pools.
748		*/
749	<	public void threadUnexpectedException(Throwable ex) {
750	<	threadFailed = true;
751	<	ex.printStackTrace();
752	<	fail("Unexpected exception: " + ex);
749	>	static class PoolCloser<T extends ExecutorService>
750	>	implements AutoCloseable {
751	>	public final T pool;
752	>	public PoolCloser(T pool) { this.pool = pool; }
753	>	public void close() { joinPool(pool); }
754		}
755
756		/**
757	<	* Wait out termination of a thread pool or fail doing so
757	>	* Waits out termination of a thread pool or fails doing so.
758		*/
759	<	public void joinPool(ExecutorService exec) {
759	>	static void joinPool(ExecutorService pool) {
760		try {
761	<	exec.shutdown();
762	<	assertTrue(exec.awaitTermination(LONG_DELAY_MS, MILLISECONDS));
761	>	pool.shutdown();
762	>	if (!pool.awaitTermination(2 * LONG_DELAY_MS, MILLISECONDS))
763	>	fail("ExecutorService " + pool +
764	>	" did not terminate in a timely manner");
765		} catch (SecurityException ok) {
766		// Allowed in case test doesn't have privs
767	<	} catch (InterruptedException ie) {
767	>	} catch (InterruptedException fail) {
768		fail("Unexpected InterruptedException");
769		}
770		}
771
772	+	/** Like Runnable, but with the freedom to throw anything */
773	+	interface Action { public void run() throws Throwable; }
774
775		/**
776	<	* fail with message "should throw exception"
776	>	* Runs all the given actions in parallel, failing if any fail.
777	>	* Useful for running multiple variants of tests that are
778	>	* necessarily individually slow because they must block.
779		*/
780	<	public void shouldThrow() {
781	<	fail("Should throw exception");
780	>	void testInParallel(Action ... actions) {
781	>	try (PoolCloser<ExecutorService> poolCloser
782	>	= new PoolCloser<>(Executors.newCachedThreadPool())) {
783	>	ExecutorService pool = poolCloser.pool;
784	>	ArrayList<Future<?>> futures = new ArrayList<>(actions.length);
785	>	for (final Action action : actions)
786	>	futures.add(pool.submit(new CheckedRunnable() {
787	>	public void realRun() throws Throwable { action.run();}}));
788	>	for (Future<?> future : futures)
789	>	try {
790	>	assertNull(future.get(LONG_DELAY_MS, MILLISECONDS));
791	>	} catch (ExecutionException ex) {
792	>	threadUnexpectedException(ex.getCause());
793	>	} catch (Exception ex) {
794	>	threadUnexpectedException(ex);
795	>	}
796	>	}
797		}
798
799		/**
800	<	* fail with message "should throw " + exceptionName
800	>	* A debugging tool to print all stack traces, as jstack does.
801	>	* Uninteresting threads are filtered out.
802		*/
803	<	public void shouldThrow(String exceptionName) {
804	<	fail("Should throw " + exceptionName);
803	>	static void printAllStackTraces() {
804	>	ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
805	>	System.err.println("------ stacktrace dump start ------");
806	>	for (ThreadInfo info : threadMXBean.dumpAllThreads(true, true)) {
807	>	String name = info.getThreadName();
808	>	if ("Signal Dispatcher".equals(name))
809	>	continue;
810	>	if ("Reference Handler".equals(name)
811	>	&& info.getLockName().startsWith("java.lang.ref.Reference$Lock"))
812	>	continue;
813	>	if ("Finalizer".equals(name)
814	>	&& info.getLockName().startsWith("java.lang.ref.ReferenceQueue$Lock"))
815	>	continue;
816	>	System.err.print(info);
817	>	}
818	>	System.err.println("------ stacktrace dump end ------");
819		}
820
821		/**
822	<	* fail with message "Unexpected exception"
822	>	* Checks that thread does not terminate within the default
823	>	* millisecond delay of {@code timeoutMillis()}.
824		*/
825	<	public void unexpectedException() {
826	<	fail("Unexpected exception");
825	>	void assertThreadStaysAlive(Thread thread) {
826	>	assertThreadStaysAlive(thread, timeoutMillis());
827		}
828
829		/**
830	<	* fail with message "Unexpected exception", with argument
830	>	* Checks that thread does not terminate within the given millisecond delay.
831		*/
832	<	public void unexpectedException(Throwable ex) {
833	<	ex.printStackTrace();
834	<	fail("Unexpected exception: " + ex);
832	>	void assertThreadStaysAlive(Thread thread, long millis) {
833	>	try {
834	>	// No need to optimize the failing case via Thread.join.
835	>	delay(millis);
836	>	assertTrue(thread.isAlive());
837	>	} catch (InterruptedException fail) {
838	>	fail("Unexpected InterruptedException");
839	>	}
840		}
841
842	+	/**
843	+	* Checks that the threads do not terminate within the default
844	+	* millisecond delay of {@code timeoutMillis()}.
845	+	*/
846	+	void assertThreadsStayAlive(Thread... threads) {
847	+	assertThreadsStayAlive(timeoutMillis(), threads);
848	+	}
849	+
850	+	/**
851	+	* Checks that the threads do not terminate within the given millisecond delay.
852	+	*/
853	+	void assertThreadsStayAlive(long millis, Thread... threads) {
854	+	try {
855	+	// No need to optimize the failing case via Thread.join.
856	+	delay(millis);
857	+	for (Thread thread : threads)
858	+	assertTrue(thread.isAlive());
859	+	} catch (InterruptedException fail) {
860	+	fail("Unexpected InterruptedException");
861	+	}
862	+	}
863	+
864	+	/**
865	+	* Checks that future.get times out, with the default timeout of
866	+	* {@code timeoutMillis()}.
867	+	*/
868	+	void assertFutureTimesOut(Future future) {
869	+	assertFutureTimesOut(future, timeoutMillis());
870	+	}
871	+
872	+	/**
873	+	* Checks that future.get times out, with the given millisecond timeout.
874	+	*/
875	+	void assertFutureTimesOut(Future future, long timeoutMillis) {
876	+	long startTime = System.nanoTime();
877	+	try {
878	+	future.get(timeoutMillis, MILLISECONDS);
879	+	shouldThrow();
880	+	} catch (TimeoutException success) {
881	+	} catch (Exception fail) {
882	+	threadUnexpectedException(fail);
883	+	} finally { future.cancel(true); }
884	+	assertTrue(millisElapsedSince(startTime) >= timeoutMillis);
885	+	}
886	+
887	+	/**
888	+	* Fails with message "should throw exception".
889	+	*/
890	+	public void shouldThrow() {
891	+	fail("Should throw exception");
892	+	}
893	+
894	+	/**
895	+	* Fails with message "should throw " + exceptionName.
896	+	*/
897	+	public void shouldThrow(String exceptionName) {
898	+	fail("Should throw " + exceptionName);
899	+	}
900
901		/**
902		* The number of elements to place in collections, arrays, etc.
#	Line 370 | Line 905 | public class JSR166TestCase extends Test
905
906		// Some convenient Integer constants
907
908	<	public static final Integer zero = new Integer(0);
909	<	public static final Integer one = new Integer(1);
910	<	public static final Integer two = new Integer(2);
911	<	public static final Integer three  = new Integer(3);
908	>	public static final Integer zero  = new Integer(0);
909	>	public static final Integer one   = new Integer(1);
910	>	public static final Integer two   = new Integer(2);
911	>	public static final Integer three = new Integer(3);
912		public static final Integer four  = new Integer(4);
913		public static final Integer five  = new Integer(5);
914	<	public static final Integer six = new Integer(6);
914	>	public static final Integer six   = new Integer(6);
915		public static final Integer seven = new Integer(7);
916		public static final Integer eight = new Integer(8);
917	<	public static final Integer nine = new Integer(9);
917	>	public static final Integer nine  = new Integer(9);
918		public static final Integer m1  = new Integer(-1);
919		public static final Integer m2  = new Integer(-2);
920		public static final Integer m3  = new Integer(-3);
921	<	public static final Integer m4 = new Integer(-4);
922	<	public static final Integer m5 = new Integer(-5);
923	<	public static final Integer m6 = new Integer(-6);
921	>	public static final Integer m4  = new Integer(-4);
922	>	public static final Integer m5  = new Integer(-5);
923	>	public static final Integer m6  = new Integer(-6);
924		public static final Integer m10 = new Integer(-10);
925
926	+	/**
927	+	* Runs Runnable r with a security policy that permits precisely
928	+	* the specified permissions.  If there is no current security
929	+	* manager, the runnable is run twice, both with and without a
930	+	* security manager.  We require that any security manager permit
931	+	* getPolicy/setPolicy.
932	+	*/
933	+	public void runWithPermissions(Runnable r, Permission... permissions) {
934	+	SecurityManager sm = System.getSecurityManager();
935	+	if (sm == null) {
936	+	r.run();
937	+	}
938	+	runWithSecurityManagerWithPermissions(r, permissions);
939	+	}
940	+
941	+	/**
942	+	* Runs Runnable r with a security policy that permits precisely
943	+	* the specified permissions.  If there is no current security
944	+	* manager, a temporary one is set for the duration of the
945	+	* Runnable.  We require that any security manager permit
946	+	* getPolicy/setPolicy.
947	+	*/
948	+	public void runWithSecurityManagerWithPermissions(Runnable r,
949	+	Permission... permissions) {
950	+	SecurityManager sm = System.getSecurityManager();
951	+	if (sm == null) {
952	+	Policy savedPolicy = Policy.getPolicy();
953	+	try {
954	+	Policy.setPolicy(permissivePolicy());
955	+	System.setSecurityManager(new SecurityManager());
956	+	runWithSecurityManagerWithPermissions(r, permissions);
957	+	} finally {
958	+	System.setSecurityManager(null);
959	+	Policy.setPolicy(savedPolicy);
960	+	}
961	+	} else {
962	+	Policy savedPolicy = Policy.getPolicy();
963	+	AdjustablePolicy policy = new AdjustablePolicy(permissions);
964	+	Policy.setPolicy(policy);
965	+
966	+	try {
967	+	r.run();
968	+	} finally {
969	+	policy.addPermission(new SecurityPermission("setPolicy"));
970	+	Policy.setPolicy(savedPolicy);
971	+	}
972	+	}
973	+	}
974	+
975	+	/**
976	+	* Runs a runnable without any permissions.
977	+	*/
978	+	public void runWithoutPermissions(Runnable r) {
979	+	runWithPermissions(r);
980	+	}
981
982		/**
983		* A security policy where new permissions can be dynamically added
#	Line 395 | Line 985 | public class JSR166TestCase extends Test
985		*/
986		public static class AdjustablePolicy extends java.security.Policy {
987		Permissions perms = new Permissions();
988	<	AdjustablePolicy() { }
988	>	AdjustablePolicy(Permission... permissions) {
989	>	for (Permission permission : permissions)
990	>	perms.add(permission);
991	>	}
992		void addPermission(Permission perm) { perms.add(perm); }
993		void clearPermissions() { perms = new Permissions(); }
994		public PermissionCollection getPermissions(CodeSource cs) {
#	Line 408 | Line 1001 | public class JSR166TestCase extends Test
1001		return perms.implies(p);
1002		}
1003		public void refresh() {}
1004	+	public String toString() {
1005	+	List<Permission> ps = new ArrayList<Permission>();
1006	+	for (Enumeration<Permission> e = perms.elements(); e.hasMoreElements();)
1007	+	ps.add(e.nextElement());
1008	+	return "AdjustablePolicy with permissions " + ps;
1009	+	}
1010	+	}
1011	+
1012	+	/**
1013	+	* Returns a policy containing all the permissions we ever need.
1014	+	*/
1015	+	public static Policy permissivePolicy() {
1016	+	return new AdjustablePolicy
1017	+	// Permissions j.u.c. needs directly
1018	+	(new RuntimePermission("modifyThread"),
1019	+	new RuntimePermission("getClassLoader"),
1020	+	new RuntimePermission("setContextClassLoader"),
1021	+	// Permissions needed to change permissions!
1022	+	new SecurityPermission("getPolicy"),
1023	+	new SecurityPermission("setPolicy"),
1024	+	new RuntimePermission("setSecurityManager"),
1025	+	// Permissions needed by the junit test harness
1026	+	new RuntimePermission("accessDeclaredMembers"),
1027	+	new PropertyPermission("*", "read"),
1028	+	new java.io.FilePermission("<<ALL FILES>>", "read"));
1029	+	}
1030	+
1031	+	/**
1032	+	* Sleeps until the given time has elapsed.
1033	+	* Throws AssertionFailedError if interrupted.
1034	+	*/
1035	+	void sleep(long millis) {
1036	+	try {
1037	+	delay(millis);
1038	+	} catch (InterruptedException fail) {
1039	+	AssertionFailedError afe =
1040	+	new AssertionFailedError("Unexpected InterruptedException");
1041	+	afe.initCause(fail);
1042	+	throw afe;
1043	+	}
1044	+	}
1045	+
1046	+	/**
1047	+	* Spin-waits up to the specified number of milliseconds for the given
1048	+	* thread to enter a wait state: BLOCKED, WAITING, or TIMED_WAITING.
1049	+	*/
1050	+	void waitForThreadToEnterWaitState(Thread thread, long timeoutMillis) {
1051	+	long startTime = System.nanoTime();
1052	+	for (;;) {
1053	+	Thread.State s = thread.getState();
1054	+	if (s == Thread.State.BLOCKED ||
1055	+	s == Thread.State.WAITING ||
1056	+	s == Thread.State.TIMED_WAITING)
1057	+	return;
1058	+	else if (s == Thread.State.TERMINATED)
1059	+	fail("Unexpected thread termination");
1060	+	else if (millisElapsedSince(startTime) > timeoutMillis) {
1061	+	threadAssertTrue(thread.isAlive());
1062	+	return;
1063	+	}
1064	+	Thread.yield();
1065	+	}
1066		}
1067
1068		/**
1069	<	* Sleep until the timeout has elapsed, or interrupted.
1070	<	* Does <em>NOT</em> throw InterruptedException.
1069	>	* Waits up to LONG_DELAY_MS for the given thread to enter a wait
1070	>	* state: BLOCKED, WAITING, or TIMED_WAITING.
1071		*/
1072	<	void sleepTillInterrupted(long timeoutMillis) {
1072	>	void waitForThreadToEnterWaitState(Thread thread) {
1073	>	waitForThreadToEnterWaitState(thread, LONG_DELAY_MS);
1074	>	}
1075	>
1076	>	/**
1077	>	* Returns the number of milliseconds since time given by
1078	>	* startNanoTime, which must have been previously returned from a
1079	>	* call to {@link System#nanoTime()}.
1080	>	*/
1081	>	static long millisElapsedSince(long startNanoTime) {
1082	>	return NANOSECONDS.toMillis(System.nanoTime() - startNanoTime);
1083	>	}
1084	>
1085	>	//     void assertTerminatesPromptly(long timeoutMillis, Runnable r) {
1086	>	//         long startTime = System.nanoTime();
1087	>	//         try {
1088	>	//             r.run();
1089	>	//         } catch (Throwable fail) { threadUnexpectedException(fail); }
1090	>	//         if (millisElapsedSince(startTime) > timeoutMillis/2)
1091	>	//             throw new AssertionFailedError("did not return promptly");
1092	>	//     }
1093	>
1094	>	//     void assertTerminatesPromptly(Runnable r) {
1095	>	//         assertTerminatesPromptly(LONG_DELAY_MS/2, r);
1096	>	//     }
1097	>
1098	>	/**
1099	>	* Checks that timed f.get() returns the expected value, and does not
1100	>	* wait for the timeout to elapse before returning.
1101	>	*/
1102	>	<T> void checkTimedGet(Future<T> f, T expectedValue, long timeoutMillis) {
1103	>	long startTime = System.nanoTime();
1104		try {
1105	<	Thread.sleep(timeoutMillis);
1106	<	} catch (InterruptedException wakeup) {}
1105	>	assertEquals(expectedValue, f.get(timeoutMillis, MILLISECONDS));
1106	>	} catch (Throwable fail) { threadUnexpectedException(fail); }
1107	>	if (millisElapsedSince(startTime) > timeoutMillis/2)
1108	>	throw new AssertionFailedError("timed get did not return promptly");
1109	>	}
1110	>
1111	>	<T> void checkTimedGet(Future<T> f, T expectedValue) {
1112	>	checkTimedGet(f, expectedValue, LONG_DELAY_MS);
1113		}
1114
1115		/**
1116	<	* Returns a new started Thread running the given runnable.
1116	>	* Returns a new started daemon Thread running the given runnable.
1117		*/
1118		Thread newStartedThread(Runnable runnable) {
1119		Thread t = new Thread(runnable);
1120	+	t.setDaemon(true);
1121		t.start();
1122		return t;
1123		}
1124
1125	+	/**
1126	+	* Waits for the specified time (in milliseconds) for the thread
1127	+	* to terminate (using {@link Thread#join(long)}), else interrupts
1128	+	* the thread (in the hope that it may terminate later) and fails.
1129	+	*/
1130	+	void awaitTermination(Thread t, long timeoutMillis) {
1131	+	try {
1132	+	t.join(timeoutMillis);
1133	+	} catch (InterruptedException fail) {
1134	+	threadUnexpectedException(fail);
1135	+	} finally {
1136	+	if (t.getState() != Thread.State.TERMINATED) {
1137	+	t.interrupt();
1138	+	fail("Test timed out");
1139	+	}
1140	+	}
1141	+	}
1142	+
1143	+	/**
1144	+	* Waits for LONG_DELAY_MS milliseconds for the thread to
1145	+	* terminate (using {@link Thread#join(long)}), else interrupts
1146	+	* the thread (in the hope that it may terminate later) and fails.
1147	+	*/
1148	+	void awaitTermination(Thread t) {
1149	+	awaitTermination(t, LONG_DELAY_MS);
1150	+	}
1151	+
1152		// Some convenient Runnable classes
1153
1154		public abstract class CheckedRunnable implements Runnable {
#	Line 437 | Line 1157 | public class JSR166TestCase extends Test
1157		public final void run() {
1158		try {
1159		realRun();
1160	<	} catch (Throwable t) {
1161	<	threadUnexpectedException(t);
1160	>	} catch (Throwable fail) {
1161	>	threadUnexpectedException(fail);
1162		}
1163		}
1164		}
#	Line 456 | Line 1176 | public class JSR166TestCase extends Test
1176		try {
1177		realRun();
1178		threadShouldThrow(exceptionClass.getSimpleName());
459	–	} catch (InterruptedException success) {
1179		} catch (Throwable t) {
1180		if (! exceptionClass.isInstance(t))
1181		threadUnexpectedException(t);
#	Line 477 | Line 1196 | public class JSR166TestCase extends Test
1196		try {
1197		realRun();
1198		threadShouldThrow(exceptionClass.getSimpleName());
480	–	} catch (InterruptedException success) {
1199		} catch (Throwable t) {
1200		if (! exceptionClass.isInstance(t))
1201		threadUnexpectedException(t);
#	Line 493 | Line 1211 | public class JSR166TestCase extends Test
1211		realRun();
1212		threadShouldThrow("InterruptedException");
1213		} catch (InterruptedException success) {
1214	<	} catch (Throwable t) {
1215	<	threadUnexpectedException(t);
1214	>	threadAssertFalse(Thread.interrupted());
1215	>	} catch (Throwable fail) {
1216	>	threadUnexpectedException(fail);
1217		}
1218		}
1219		}
#	Line 505 | Line 1224 | public class JSR166TestCase extends Test
1224		public final T call() {
1225		try {
1226		return realCall();
1227	<	} catch (Throwable t) {
1228	<	threadUnexpectedException(t);
1227	>	} catch (Throwable fail) {
1228	>	threadUnexpectedException(fail);
1229	>	return null;
1230		}
511	–	return null;
1231		}
1232		}
1233
1234	<	public abstract class CheckedInterruptedCallable<T> implements Callable<T> {
1234	>	public abstract class CheckedInterruptedCallable<T>
1235	>	implements Callable<T> {
1236		protected abstract T realCall() throws Throwable;
1237
1238		public final T call() {
#	Line 521 | Line 1241 | public class JSR166TestCase extends Test
1241		threadShouldThrow("InterruptedException");
1242		return result;
1243		} catch (InterruptedException success) {
1244	<	} catch (Throwable t) {
1245	<	threadUnexpectedException(t);
1244	>	threadAssertFalse(Thread.interrupted());
1245	>	} catch (Throwable fail) {
1246	>	threadUnexpectedException(fail);
1247		}
1248		return null;
1249		}
#	Line 539 | Line 1260 | public class JSR166TestCase extends Test
1260		public static final String TEST_STRING = "a test string";
1261
1262		public static class StringTask implements Callable<String> {
1263	<	public String call() { return TEST_STRING; }
1263	>	final String value;
1264	>	public StringTask() { this(TEST_STRING); }
1265	>	public StringTask(String value) { this.value = value; }
1266	>	public String call() { return value; }
1267	>	}
1268	>
1269	>	public Callable<String> latchAwaitingStringTask(final CountDownLatch latch) {
1270	>	return new CheckedCallable<String>() {
1271	>	protected String realCall() {
1272	>	try {
1273	>	latch.await();
1274	>	} catch (InterruptedException quittingTime) {}
1275	>	return TEST_STRING;
1276	>	}};
1277	>	}
1278	>
1279	>	public Runnable countDowner(final CountDownLatch latch) {
1280	>	return new CheckedRunnable() {
1281	>	public void realRun() throws InterruptedException {
1282	>	latch.countDown();
1283	>	}};
1284	>	}
1285	>
1286	>	public Runnable awaiter(final CountDownLatch latch) {
1287	>	return new CheckedRunnable() {
1288	>	public void realRun() throws InterruptedException {
1289	>	await(latch);
1290	>	}};
1291	>	}
1292	>
1293	>	public void await(CountDownLatch latch) {
1294	>	try {
1295	>	assertTrue(latch.await(LONG_DELAY_MS, MILLISECONDS));
1296	>	} catch (Throwable fail) {
1297	>	threadUnexpectedException(fail);
1298	>	}
1299	>	}
1300	>
1301	>	public void await(Semaphore semaphore) {
1302	>	try {
1303	>	assertTrue(semaphore.tryAcquire(LONG_DELAY_MS, MILLISECONDS));
1304	>	} catch (Throwable fail) {
1305	>	threadUnexpectedException(fail);
1306	>	}
1307		}
1308
1309	+	//     /**
1310	+	//      * Spin-waits up to LONG_DELAY_MS until flag becomes true.
1311	+	//      */
1312	+	//     public void await(AtomicBoolean flag) {
1313	+	//         await(flag, LONG_DELAY_MS);
1314	+	//     }
1315	+
1316	+	//     /**
1317	+	//      * Spin-waits up to the specified timeout until flag becomes true.
1318	+	//      */
1319	+	//     public void await(AtomicBoolean flag, long timeoutMillis) {
1320	+	//         long startTime = System.nanoTime();
1321	+	//         while (!flag.get()) {
1322	+	//             if (millisElapsedSince(startTime) > timeoutMillis)
1323	+	//                 throw new AssertionFailedError("timed out");
1324	+	//             Thread.yield();
1325	+	//         }
1326	+	//     }
1327	+
1328		public static class NPETask implements Callable<String> {
1329		public String call() { throw new NullPointerException(); }
1330		}
#	Line 552 | Line 1335 | public class JSR166TestCase extends Test
1335
1336		public class ShortRunnable extends CheckedRunnable {
1337		protected void realRun() throws Throwable {
1338	<	Thread.sleep(SHORT_DELAY_MS);
1338	>	delay(SHORT_DELAY_MS);
1339		}
1340		}
1341
1342		public class ShortInterruptedRunnable extends CheckedInterruptedRunnable {
1343		protected void realRun() throws InterruptedException {
1344	<	Thread.sleep(SHORT_DELAY_MS);
1344	>	delay(SHORT_DELAY_MS);
1345		}
1346		}
1347
1348		public class SmallRunnable extends CheckedRunnable {
1349		protected void realRun() throws Throwable {
1350	<	Thread.sleep(SMALL_DELAY_MS);
1350	>	delay(SMALL_DELAY_MS);
1351		}
1352		}
1353
1354		public class SmallPossiblyInterruptedRunnable extends CheckedRunnable {
1355		protected void realRun() {
1356		try {
1357	<	Thread.sleep(SMALL_DELAY_MS);
1357	>	delay(SMALL_DELAY_MS);
1358		} catch (InterruptedException ok) {}
1359		}
1360		}
1361
1362		public class SmallCallable extends CheckedCallable {
1363		protected Object realCall() throws InterruptedException {
1364	<	Thread.sleep(SMALL_DELAY_MS);
1364	>	delay(SMALL_DELAY_MS);
1365		return Boolean.TRUE;
1366		}
1367		}
1368
586	–	public class SmallInterruptedRunnable extends CheckedInterruptedRunnable {
587	–	protected void realRun() throws InterruptedException {
588	–	Thread.sleep(SMALL_DELAY_MS);
589	–	}
590	–	}
591	–
1369		public class MediumRunnable extends CheckedRunnable {
1370		protected void realRun() throws Throwable {
1371	<	Thread.sleep(MEDIUM_DELAY_MS);
1371	>	delay(MEDIUM_DELAY_MS);
1372		}
1373		}
1374
1375		public class MediumInterruptedRunnable extends CheckedInterruptedRunnable {
1376		protected void realRun() throws InterruptedException {
1377	<	Thread.sleep(MEDIUM_DELAY_MS);
1377	>	delay(MEDIUM_DELAY_MS);
1378		}
1379		}
1380
1381	+	public Runnable possiblyInterruptedRunnable(final long timeoutMillis) {
1382	+	return new CheckedRunnable() {
1383	+	protected void realRun() {
1384	+	try {
1385	+	delay(timeoutMillis);
1386	+	} catch (InterruptedException ok) {}
1387	+	}};
1388	+	}
1389	+
1390		public class MediumPossiblyInterruptedRunnable extends CheckedRunnable {
1391		protected void realRun() {
1392		try {
1393	<	Thread.sleep(MEDIUM_DELAY_MS);
1393	>	delay(MEDIUM_DELAY_MS);
1394		} catch (InterruptedException ok) {}
1395		}
1396		}
#	Line 612 | Line 1398 | public class JSR166TestCase extends Test
1398		public class LongPossiblyInterruptedRunnable extends CheckedRunnable {
1399		protected void realRun() {
1400		try {
1401	<	Thread.sleep(LONG_DELAY_MS);
1401	>	delay(LONG_DELAY_MS);
1402		} catch (InterruptedException ok) {}
1403		}
1404		}
#	Line 626 | Line 1412 | public class JSR166TestCase extends Test
1412		}
1413		}
1414
1415	+	public interface TrackedRunnable extends Runnable {
1416	+	boolean isDone();
1417	+	}
1418	+
1419	+	public static TrackedRunnable trackedRunnable(final long timeoutMillis) {
1420	+	return new TrackedRunnable() {
1421	+	private volatile boolean done = false;
1422	+	public boolean isDone() { return done; }
1423	+	public void run() {
1424	+	try {
1425	+	delay(timeoutMillis);
1426	+	done = true;
1427	+	} catch (InterruptedException ok) {}
1428	+	}
1429	+	};
1430	+	}
1431	+
1432		public static class TrackedShortRunnable implements Runnable {
1433		public volatile boolean done = false;
1434		public void run() {
1435		try {
1436	<	Thread.sleep(SMALL_DELAY_MS);
1436	>	delay(SHORT_DELAY_MS);
1437	>	done = true;
1438	>	} catch (InterruptedException ok) {}
1439	>	}
1440	>	}
1441	>
1442	>	public static class TrackedSmallRunnable implements Runnable {
1443	>	public volatile boolean done = false;
1444	>	public void run() {
1445	>	try {
1446	>	delay(SMALL_DELAY_MS);
1447		done = true;
1448		} catch (InterruptedException ok) {}
1449		}
#	Line 640 | Line 1453 | public class JSR166TestCase extends Test
1453		public volatile boolean done = false;
1454		public void run() {
1455		try {
1456	<	Thread.sleep(MEDIUM_DELAY_MS);
1456	>	delay(MEDIUM_DELAY_MS);
1457		done = true;
1458		} catch (InterruptedException ok) {}
1459		}
#	Line 650 | Line 1463 | public class JSR166TestCase extends Test
1463		public volatile boolean done = false;
1464		public void run() {
1465		try {
1466	<	Thread.sleep(LONG_DELAY_MS);
1466	>	delay(LONG_DELAY_MS);
1467		done = true;
1468		} catch (InterruptedException ok) {}
1469		}
#	Line 667 | Line 1480 | public class JSR166TestCase extends Test
1480		public volatile boolean done = false;
1481		public Object call() {
1482		try {
1483	<	Thread.sleep(SMALL_DELAY_MS);
1483	>	delay(SMALL_DELAY_MS);
1484		done = true;
1485		} catch (InterruptedException ok) {}
1486		return Boolean.TRUE;
1487		}
1488		}
1489
1490	+	/**
1491	+	* Analog of CheckedRunnable for RecursiveAction
1492	+	*/
1493	+	public abstract class CheckedRecursiveAction extends RecursiveAction {
1494	+	protected abstract void realCompute() throws Throwable;
1495	+
1496	+	@Override protected final void compute() {
1497	+	try {
1498	+	realCompute();
1499	+	} catch (Throwable fail) {
1500	+	threadUnexpectedException(fail);
1501	+	}
1502	+	}
1503	+	}
1504	+
1505	+	/**
1506	+	* Analog of CheckedCallable for RecursiveTask
1507	+	*/
1508	+	public abstract class CheckedRecursiveTask<T> extends RecursiveTask<T> {
1509	+	protected abstract T realCompute() throws Throwable;
1510	+
1511	+	@Override protected final T compute() {
1512	+	try {
1513	+	return realCompute();
1514	+	} catch (Throwable fail) {
1515	+	threadUnexpectedException(fail);
1516	+	return null;
1517	+	}
1518	+	}
1519	+	}
1520
1521		/**
1522		* For use as RejectedExecutionHandler in constructors
#	Line 683 | Line 1526 | public class JSR166TestCase extends Test
1526		ThreadPoolExecutor executor) {}
1527		}
1528
1529	+	/**
1530	+	* A CyclicBarrier that uses timed await and fails with
1531	+	* AssertionFailedErrors instead of throwing checked exceptions.
1532	+	*/
1533	+	public class CheckedBarrier extends CyclicBarrier {
1534	+	public CheckedBarrier(int parties) { super(parties); }
1535	+
1536	+	public int await() {
1537	+	try {
1538	+	return super.await(2 * LONG_DELAY_MS, MILLISECONDS);
1539	+	} catch (TimeoutException timedOut) {
1540	+	throw new AssertionFailedError("timed out");
1541	+	} catch (Exception fail) {
1542	+	AssertionFailedError afe =
1543	+	new AssertionFailedError("Unexpected exception: " + fail);
1544	+	afe.initCause(fail);
1545	+	throw afe;
1546	+	}
1547	+	}
1548	+	}
1549	+
1550	+	void checkEmpty(BlockingQueue q) {
1551	+	try {
1552	+	assertTrue(q.isEmpty());
1553	+	assertEquals(0, q.size());
1554	+	assertNull(q.peek());
1555	+	assertNull(q.poll());
1556	+	assertNull(q.poll(0, MILLISECONDS));
1557	+	assertEquals(q.toString(), "[]");
1558	+	assertTrue(Arrays.equals(q.toArray(), new Object[0]));
1559	+	assertFalse(q.iterator().hasNext());
1560	+	try {
1561	+	q.element();
1562	+	shouldThrow();
1563	+	} catch (NoSuchElementException success) {}
1564	+	try {
1565	+	q.iterator().next();
1566	+	shouldThrow();
1567	+	} catch (NoSuchElementException success) {}
1568	+	try {
1569	+	q.remove();
1570	+	shouldThrow();
1571	+	} catch (NoSuchElementException success) {}
1572	+	} catch (InterruptedException fail) { threadUnexpectedException(fail); }
1573	+	}
1574	+
1575	+	void assertSerialEquals(Object x, Object y) {
1576	+	assertTrue(Arrays.equals(serialBytes(x), serialBytes(y)));
1577	+	}
1578	+
1579	+	void assertNotSerialEquals(Object x, Object y) {
1580	+	assertFalse(Arrays.equals(serialBytes(x), serialBytes(y)));
1581	+	}
1582	+
1583	+	byte[] serialBytes(Object o) {
1584	+	try {
1585	+	ByteArrayOutputStream bos = new ByteArrayOutputStream();
1586	+	ObjectOutputStream oos = new ObjectOutputStream(bos);
1587	+	oos.writeObject(o);
1588	+	oos.flush();
1589	+	oos.close();
1590	+	return bos.toByteArray();
1591	+	} catch (Throwable fail) {
1592	+	threadUnexpectedException(fail);
1593	+	return new byte[0];
1594	+	}
1595	+	}
1596	+
1597	+	@SuppressWarnings("unchecked")
1598	+	<T> T serialClone(T o) {
1599	+	try {
1600	+	ObjectInputStream ois = new ObjectInputStream
1601	+	(new ByteArrayInputStream(serialBytes(o)));
1602	+	T clone = (T) ois.readObject();
1603	+	assertSame(o.getClass(), clone.getClass());
1604	+	return clone;
1605	+	} catch (Throwable fail) {
1606	+	threadUnexpectedException(fail);
1607	+	return null;
1608	+	}
1609	+	}
1610	+
1611	+	public void assertThrows(Class<? extends Throwable> expectedExceptionClass,
1612	+	Runnable... throwingActions) {
1613	+	for (Runnable throwingAction : throwingActions) {
1614	+	boolean threw = false;
1615	+	try { throwingAction.run(); }
1616	+	catch (Throwable t) {
1617	+	threw = true;
1618	+	if (!expectedExceptionClass.isInstance(t)) {
1619	+	AssertionFailedError afe =
1620	+	new AssertionFailedError
1621	+	("Expected " + expectedExceptionClass.getName() +
1622	+	", got " + t.getClass().getName());
1623	+	afe.initCause(t);
1624	+	threadUnexpectedException(afe);
1625	+	}
1626	+	}
1627	+	if (!threw)
1628	+	shouldThrow(expectedExceptionClass.getName());
1629	+	}
1630	+	}
1631	+
1632	+	public void assertIteratorExhausted(Iterator<?> it) {
1633	+	try {
1634	+	it.next();
1635	+	shouldThrow();
1636	+	} catch (NoSuchElementException success) {}
1637	+	assertFalse(it.hasNext());
1638	+	}
1639		}

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